US 12,105,130 B2
Microwave sensor using Autler-Townes splitting
Evan Salim, Lafayette, CO (US); Dana Zachary Anderson, Boulder, CO (US); Jayson Denney, Golden, CO (US); and Farhad Majdeteimouri, Broomfield, CO (US)
Assigned to ColdQuanta, Inc., Boulder, CO (US)
Filed by ColdQuanta, Inc., Boulder, CO (US)
Filed on Mar. 2, 2023, as Appl. No. 18/116,698.
Application 17/734,706 is a division of application No. 17/216,883, filed on Mar. 30, 2021, granted, now 11,415,614, issued on Aug. 16, 2022.
Application 18/116,698 is a continuation of application No. 17/734,706, filed on May 2, 2022, granted, now 11,630,143.
Application 17/216,883 is a continuation in part of application No. 16/576,067, filed on Sep. 19, 2019, granted, now 11,002,777, issued on May 11, 2021.
Claims priority of provisional application 62/795,743, filed on Jan. 23, 2019.
Prior Publication US 2024/0012039 A1, Jan. 11, 2024
Int. Cl. G01R 29/08 (2006.01); G01R 33/60 (2006.01)
CPC G01R 29/0885 (2013.01) [G01R 33/60 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A microwave sensing system comprising:
a vacuum cell for isolating a plurality of quantum particles from an external environment;
a laser system configured to provide a probe beam and a coupling beam directed through the plurality of quantum particles, a frequency of the probe beam being settable within a plurality of frequencies; and
a capture system configured to capture a frequency spectrum for the probe beam;
wherein a microwave having a microwave frequency and a microwave electric field strength transits the plurality of quantum particles and intersects the probe beam and the coupling beam in a region, the capture system capturing the frequency spectrum in the region, the microwave altering the frequency spectrum in the region based on the microwave electric field strength; and
wherein the microwave induces Autler-Townes peaks in the frequency spectrum due to Autler-Townes splitting, a frequency difference between the Autler-Townes peaks characterizing the microwave electric field strength of the microwave.